the united states closed its embassy along with fresh threats from al-qaeda. the president's top counterterrorism advisor, john brennan, hit the talk show circuit on sunday to talk more about the situation in yemen. >> our indications are that al- qaeda plans to carry on an attack. both the u.s. and the british embassies have been closed to give the government an opportunity to thwart that threat. >> yes, ma'am antiis the ancestral home of osama bin laden. as for whether u.s. troops might be sent there, the administration's top counter- terrorism advisor says that is not under discussion. >>> the world's tallet building is opening in dubai today. the actual height remain as you closely guarded secret but it is believed to be nearly 2700 feet tall which isnearly a thousand feet taller than the world's tallest building in taiwan and it is almost two empire state buildings. it will house luxury apartments, offices and a hotel. >>> there is a consumer alert this morning. cell phones could soon come with a new warning label in the name of safety. >>> but up next, c